UPS and number of computers that can connect to single unit

  • Thread starter Thread starter Jeff
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J

Jeff

Thinking of buying the APC 350U Cdn, which is rated as:

Output
Output power capacity 350 VA

Output power capacity 200 Watts

Nominal output voltage 120 V

Output Connections (3)NEMA 5-15R
(3)NEMA 5-15R (Surge)

http://www.apc.com/resource/include/techspec_index.cfm?base_sku=BE350U-CN



Anyway I had wanted to connect 2 or 3 PC's to this - the PC's in
question functions as "servers" to a home network. EAch has 3-4
harddrives, with power supllies rated at 25-0-300W. Older video cards,
no monitos/printers

Almost always power-outs here are only a few seconds and relatively
rare; the intention is to prevent surges and provide power only very
briefly

THe computers in question are set to turn off HD's after period of
inactivity, but none are set to hibernate


Is is possible to connect 2 or 3 such PC's to this (cheap) basic UPS,
and expect to get (say) 15 sec of power on each of three if necessary

Jeff
 
Is is possible to connect 2 or 3 such PC's to this (cheap) basic UPS,
and expect to get (say) 15 sec of power on each of three if necessary

Jeff
Click to expand...
No. I have several brands of UPS and if two PC's are plugged in they
reboot even if the house lights just flicker. The biggest is an APC
and it has an overload light that comes on with just two 2500+ boxes
plugged into it. They draw about 160 watts each.
 
Jeff said:
Thinking of buying the APC 350U Cdn, which is rated as:

Output
Output power capacity 350 VA

Output power capacity 200 Watts

Nominal output voltage 120 V

Output Connections (3)NEMA 5-15R
(3)NEMA 5-15R (Surge)

http://www.apc.com/resource/include/techspec_index.cfm?base_sku=BE350U-CN



Anyway I had wanted to connect 2 or 3 PC's to this - the PC's in
question functions as "servers" to a home network. EAch has 3-4
harddrives, with power supllies rated at 25-0-300W. Older video cards,
no monitos/printers

Almost always power-outs here are only a few seconds and relatively
rare; the intention is to prevent surges and provide power only very
briefly

THe computers in question are set to turn off HD's after period of
inactivity, but none are set to hibernate


Is is possible to connect 2 or 3 such PC's to this (cheap) basic UPS,
and expect to get (say) 15 sec of power on each of three if necessary

Jeff
Click to expand...

If you can make arrangements with the power company so that power
outages occur only when all your HDs are inactive, you may be okay ...

I guess your data isn't worth much ...

I believe Belkin makes a 1200VA unit for around $120. If you have three
servers, the cost of your whole setup must make US120 look pretty small.
 
Here's a link to the brand I use: http://www.cyberpowersystems.com/
I'm only backing up one computer (with front panel LCD, DVD, CDR, Flash card
reader with USB ports, firewire, Geforce Ti4600 video, LAN card, floppy, 4
fans, and a 465 watt power supply (two more fans)....all of which increase
the amps required to run the system, reducing the runtime of the UPS). I'm
also running my monitor on it, which is a large draw. Estimated load on the
UPS is 54 percent, runtime of approx 13 minutes if power fails. The model is
a 725AV. They make them up to 1500AV. If you were only plugging in the
computers, then you should get enough time to automatically back up data and
go through the shutdown sequence. If you phone, Cyberpower will let you talk
to a real person, who will take the time to discuss your system and
requirements. I was impressed with them.

Fitz
 
Howdy!

Jeff said:
Thinking of buying the APC 350U Cdn, which is rated as:

Output
Output power capacity 350 VA

Output power capacity 200 Watts
Click to expand...

You DO notice this, don't you? 200 watts?

Anyway I had wanted to connect 2 or 3 PC's to this - the PC's in
question functions as "servers" to a home network. EAch has 3-4
harddrives, with power supllies rated at 25-0-300W. Older video cards,
no monitos/printers
Click to expand...

I presume you meant 250-300 watts above.

Well, to tell for sure, you're going to need to find out how much
current the computers ACTUALLY pull. But I'd put one each on one of these
UPSen.

(Actually, I'd opt for a 1000VA and put all three on it ... but
that's me.)
Almost always power-outs here are only a few seconds and relatively
rare; the intention is to prevent surges and provide power only very
briefly
Click to expand...

I understand this ... but that's a VERY small market for UPSen.
Besides, what about the power outage that ISN'T "only a few seconds"?

Naw, get one big enough and don't be "penny wise, pound foolish".

RwP
 
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